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Table 1 Demographic characteristics at the date of transplantation for (i) whole cohort and (ii) FTR and STR separately; the last three rows of the table concern covariates specific for STR

From: Comparison of the risk factors effects between two populations: two alternative approaches illustrated by the analysis of first and second kidney transplant recipients

 

All (N = 2772)

FTR (N = 2206)

STR (N = 566)

 

Demographic characteristics

Number (%)

Number (%)

Number (%)

p-value

Transplantation period < 2005

594

(21.4)

457

(20.7)

137

(24.2)

0.0806

Recipient ≥ 55 years of age

1175

(42.4)

994

(45.1)

181

(32.0)

<0.0001

Male recipient

1705

(61.5)

1362

(61.7)

343

(60.6)

0.6536

Recurrent causal nephropathy

906

(32.7)

666

(30.2)

240

(42.4)

<0.0001

History of diabetes

306

(11.0)

269

(12.2)

37

(6.5)

0.0002

History of hypertension

2263

(81.6)

1804

(81.8)

459

(81.1)

0.7545

History of vascular disease

352

(12.7)

272

(12.3)

80

(14.1)

0.2804

History of cardiac disease

903

(32.6)

686

(31.1)

217

(38.3)

0.0012

History of dyslipemia

799

(28.8)

661

(30.0)

138

(24.4)

0.0104

History of malignancy

228

(8.2)

147

(6.7)

81

(14.3)

<0.0001

History of hepatitis B or C

168

(6.1)

96

(4.4)

72

(12.7)

<0.0001

Recipient BMI ≥ 30 kg.m -2

263

(9.5)

235

(10.7)

28

(4.9)

<0.0001

Positive anti-class I PRA

706

(25.5)

355

(16.1)

351

(62.0)

<0.0001

Positive anti-class II PRA

733

(26.4)

319

(14.5)

414

(73.1)

<0.0001

Donor ≥ 55 years of age

1172

(42.3)

973

(44.1)

199

(35.2)

0.0002

Deceased donor

2470

(89.1)

1940

(87.9)

530

(93.6)

0.0002

Donor serum creatinine ≥ 133 μmol/l

342

(12.5)

279

(12.8)

63

(11.4)

0.3807

Positive donor EBV serology

2613

(94.3)

2087

(94.6)

526

(92.9)

0.1540

HLA-A-B-DR incompatibilities > 4

365

(13.2)

326

(14.8)

39

(6.9)

<0.0001

Cold ischemia time ≥ 24h

754

(27.2)

552

(25.0)

202

(35.7)

<0.0001

Lymphocyte-depleting induction

1223

(44.1)

793

(35.9)

430

(76.0)

<0.0001

First graft survival < 1 year

-

-

-

-

131

(24.1)

-

Waiting time before regraft ≥ 3 years

-

-

-

-

272

(49.8)

-

Transplantectomy of the first graft

-

-

-

-

220

(38.9)

-

  1. p-values were obtained by using the Chi-square statistic.